Your Answer is
Correct Answer is C
Explanation
Working 8hours a day, billed by the hour, the daily income should be 8×10=80, sewing 60 shirts, and the billed income is 60×1=60, so $80 is higher, and the income on Monday should be $80 ; Similarly, Tuesday's earnings should also be billed at $80 per hour. Wednesday's income is 85 x 1 = $85. 80×1=80 on Thursday, 90×1=90 around. The total income is 80+80+85+90=415